The Reds’ number one has been short of his best so far this term and it’s believed that Rodgers is keen to draft in a long-term replacement for the 30-year-old.
The Anfield club are rumoured to have made an approach for Butland during the summer, but backed out at the last minute as they stepped up their pursuit of a striker.
But, they are ready to return for the 19-year-old England international once the transfer window opens.
Zieler has been mooted as an alternative, with the 23-year-old earning rave reviews in Germany for his performances for Hannover.
If either of duo are drafted in it would look likely that Reina may make way. Arsenal are believed to be interested, having previously approached the Spaniard, and could include unsettled winger Theo Walcott as part of any potential deal.
But, it is unclear as to whether Arsene Wenger still feels that his goalkeeping situation is a particular worry.
Liverpool are also thought to be closing in on former youth player Thomas Ince, now at Blackpool, and Chelsea back-up striker Daniel Sturridge as they attempt to ease the goal scoring responsibility placed on Luis Suarez.